. The Street railway journal . FIG. 17.—WATER RHEOSTAT turning the shaft further, disconnect, step by step, the resist-ances until in the last position the secondary terminals of themotor are short-circuited. TESTS ON THE NEW LOCOMOTIVESOf the new locomotives the first was delivered in May, put in regular operation in June. The two others were de-livered somewhat later, but all three new locomotives havebeen in regular service since September. Before commencingregular operation they were tested thoroughly by the Govern-ment authorities, as well as by the railway company, to deter-. FI
. The Street railway journal . FIG. 17.—WATER RHEOSTAT turning the shaft further, disconnect, step by step, the resist-ances until in the last position the secondary terminals of themotor are short-circuited. TESTS ON THE NEW LOCOMOTIVESOf the new locomotives the first was delivered in May, put in regular operation in June. The two others were de-livered somewhat later, but all three new locomotives havebeen in regular service since September. Before commencingregular operation they were tested thoroughly by the Govern-ment authorities, as well as by the railway company, to deter-. FIG. 18.—LIGHTNING ARRESTER mine whether they fulfilled all the guarantees. It is character-istic of these locomotives that when the first one was putin operation it came up to the requirements of the service atonce, and continued to do so until, after a months time, it wastaken out of the service for a day for inspection. The locomo-tives haul passenger trains up to 250 tons in weight and freighttrains up to 400 tons. Fig. 23 shows a freight train at Colicostation. During the tests with these locomotives a dynamometer carwas put between the locomotive and the other part of the train,which permitted a measure of the draw-bar pull and speed ofthe locomotive as a function of the time and of the test made with these locomotives covered thirty succes-sive startings with a train of 400 tons to a speed of 30 km attime intervals of 120 seconds. During these tests a tractive force was observed several times with the dynamometer car,which, reduced to the circumference of the whe
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
